This place is located southeast of the city of Santa Elena, in the peninsula of the same name, and it is accessed from the city of Guayaquil. Sumpa is the native name of the Peninsula of Santa Elena, and the archaeological site is known as Las Vegas. The archaeological zone corresponds to a pre-ceramic settlement where traces of housing, garbage dump and a cemetery are found.

The first research was made in 1964, then the Museum of the Central Bank of Guayaquil developed a project in 1971, and later it performed further studies in 1977. The known evidence is a burial of a man and a woman, placed in horizontal position with their arms around each other. Seven stones were found in different parts of their skeletons, as if they were stoned to death, or part of a funeral ritual; for this reason they are know as The Lovers of Sumpa.

To date, Las Vegas is the only Paleoindian site known in the Coast of Ecuador that shows evidence of transition to sedentary lifestyle and agriculture. It dates from 700 BC.